Installation Manual

The shims may be made from aluminium plate wedges, simple flat

washers, or an angled wooden block. For thick shims, you may

need longer securing bolts than the M10 studding supplied, (see

note in Installing the Digital Radar Components on p.26).

1.7 Cable requirements

This section provides details on selecting the appropriate cables for

your system. Permissible cable lengths depend on the digital radar

type and the boat’s power system. Information on the combined

inter-unit and power cables is provided in the following sections.

You need to consider the following before installing the cables:

• You need to connect the digital radar to the SeaTalk

switch, or

SeaTalk

crossover coupler for data, and the Voltage Converter

Module (VCM100) unit for power. The cable required depends

on the distance between the digital radar, VCM100 and data

connections.

• All cables should be adequately clamped and protected from

physical damage and exposure to heat - avoid running cables

through bilges or doorways, or close to moving or hot objects.

• Acute bends in any cable must be avoided. Minimum bend

radius = 2.5 inch (60mm).

• Where a cable passes through an exposed bulkhead or

deckhead, a watertight gland or swan neck tube should be used.

• Do not cut and re-join cables.

Digital Radar cable

The digital radar cable combines inter-unit data (SeaTalk

) and

power cores. One has a plug for connecting in to the SeaTalk

network, the other is for connecting to the power output of the

VCM100 (see Voltage Converter Module (VCM100) on page ). The

digital radar cable connector plug is situated at the rear of the digital

radar unit.

4 cable lengths and 2 extension cable length’s are available (see

Table 1-1 p.18).

All figures are for cable lengths between digital radar to VCM100

and SeaTalk

connections.